Computer monitor



FIG. 1 is a front perspective view of a computer monitor showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top plan view thereof on an enlarged scale;

FIG. 4 is a front elevational view thereof on an enlarged scale;

FIG. 5 is a bottom plan view thereof on an enlarged scale;

FIG. 6 is a rear elevational view thereof on an enlarged scale;

FIG. 7 is a right side elevational view thereof on an enlarged scale, the left side being a mirror image. 

The ornamental design for a computer monitor, as shown and described. 